Question

select all of the angles for which $overrightarrow{ha}$ and $overrightarrow{he}$ are sides.
a) $angle1$
b) $angle6$
c) $angle ahe$
d) $angle age$
e) $angle eha$
f) $angle ega$
g) $angle hea$

Explanation:

Step1: Identify vertex of angle

Sides $\overrightarrow{HA}$ and $\overrightarrow{HE}$ share endpoint H, so vertex is H.

Step2: Check angle notation

Angle notation middle letter is vertex. For $\overrightarrow{HA}$ and $\overrightarrow{HE}$, angles with vertex H and sides HA, HE are $\angle AHE$ (HA, HE) and $\angle EHA$ (EH=HE, HA).

Answer:

C. ∠AHE, E. ∠EHA